The negative externalities of owning vulnerable devices need to come home to roost at some point, yeah. I've chosen to own a "dumb" (read: "reliable") washing

The negative externalities of owning vulnerable devices need to come home to roost at some point, yeah. I've chosen to own a "dumb" (read: "reliable") washing machine, and it cannot be used in such an attack. I have to endure the indignity of peeking downstairs to see if I left clothes in it, which is a cost of sorts, but it's nowhere near the cost I'd expect to bear if I bought a vulnerable washing machine and it provided resources to knock Wikipedia off the internet. What other disincentive to putting vulnerable devices on the internet do you propose?